EP0457229A3 - Printing apparatus and information processing apparatus using the same - Google Patents
Printing apparatus and information processing apparatus using the same Download PDFInfo
- Publication number
- EP0457229A3 EP0457229A3 EP19910107694 EP91107694A EP0457229A3 EP 0457229 A3 EP0457229 A3 EP 0457229A3 EP 19910107694 EP19910107694 EP 19910107694 EP 91107694 A EP91107694 A EP 91107694A EP 0457229 A3 EP0457229 A3 EP 0457229A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- same
- information processing
- processing apparatus
- printing apparatus
- printing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
- H04N1/3871—Composing, repositioning or otherwise geometrically modifying originals the composed originals being of different kinds, e.g. low- and high-resolution originals
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
- H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
- H04N1/4057—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern being a mixture of differently sized sub-patterns, e.g. spots having only a few different diameters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Facsimile Image Signal Circuits (AREA)
- Dot-Matrix Printers And Others (AREA)
- Color, Gradation (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2126720A JP2941355B2 (en) | 1990-05-18 | 1990-05-18 | Printing apparatus and information processing apparatus using the printing apparatus |
JP126720/90 | 1990-05-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0457229A2 EP0457229A2 (en) | 1991-11-21 |
EP0457229A3 true EP0457229A3 (en) | 1993-03-03 |
Family
ID=14942202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910107694 Ceased EP0457229A3 (en) | 1990-05-18 | 1991-05-13 | Printing apparatus and information processing apparatus using the same |
Country Status (3)
Country | Link |
---|---|
US (1) | US5151973A (en) |
EP (1) | EP0457229A3 (en) |
JP (1) | JP2941355B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5987219A (en) * | 1993-09-01 | 1999-11-16 | Canon Information Systems Research Australia Pty. Ltd. | Method of producing a dither matrix by dividing an array into a plurality of regions and altering the borders of each region to have continuous irregular boundaries |
WO1995006910A1 (en) * | 1993-09-01 | 1995-03-09 | Canon Information Systems Research Australia Pty. Ltd. | Alteration of dither matrix size for full colour dithering |
US7643174B2 (en) * | 2005-07-29 | 2010-01-05 | Canon Kabushiki Kaisha | Semiconductor laser drive control device |
JP4807212B2 (en) * | 2006-10-02 | 2011-11-02 | 大日本印刷株式会社 | Drawing-molded paper container and manufacturing method thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3197558A (en) * | 1960-04-01 | 1965-07-27 | Petits Fils De Leonard Danel | Process for the reproduction of continuous tone pictures |
US3474192A (en) * | 1966-11-09 | 1969-10-21 | Webb James E | Video communication system and apparatus |
FR2007849A1 (en) * | 1968-05-04 | 1970-01-16 | Hell Rudolf | |
US4004079A (en) * | 1975-11-14 | 1977-01-18 | Optronics International, Inc. | Method and apparatus for dual resolution photographic reproduction of line and continuous tone graphic materials |
FR2497043A1 (en) * | 1980-12-19 | 1982-06-25 | Cit Alcatel | Laser imaging system - is controlled by binary image signals converted for modulation of beam intensity to control spot size |
GB2117208A (en) * | 1982-03-13 | 1983-10-05 | Dainippon Screen Mfg | Reproducing composite picture from scanned original picture and scanned character document |
US4491875A (en) * | 1980-10-30 | 1985-01-01 | Canon Kabushiki Kaisha | Apparatus and method for tonal image processing |
US4680645A (en) * | 1986-08-25 | 1987-07-14 | Hewlett-Packard Company | Method for rendering gray scale images with variable dot sizes |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161572A (en) * | 1982-03-19 | 1983-09-26 | Fuji Xerox Co Ltd | Heat-sensitive recorder |
-
1990
- 1990-05-18 JP JP2126720A patent/JP2941355B2/en not_active Expired - Lifetime
-
1991
- 1991-05-13 EP EP19910107694 patent/EP0457229A3/en not_active Ceased
- 1991-05-16 US US07/701,042 patent/US5151973A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3197558A (en) * | 1960-04-01 | 1965-07-27 | Petits Fils De Leonard Danel | Process for the reproduction of continuous tone pictures |
US3474192A (en) * | 1966-11-09 | 1969-10-21 | Webb James E | Video communication system and apparatus |
FR2007849A1 (en) * | 1968-05-04 | 1970-01-16 | Hell Rudolf | |
US4004079A (en) * | 1975-11-14 | 1977-01-18 | Optronics International, Inc. | Method and apparatus for dual resolution photographic reproduction of line and continuous tone graphic materials |
US4491875A (en) * | 1980-10-30 | 1985-01-01 | Canon Kabushiki Kaisha | Apparatus and method for tonal image processing |
FR2497043A1 (en) * | 1980-12-19 | 1982-06-25 | Cit Alcatel | Laser imaging system - is controlled by binary image signals converted for modulation of beam intensity to control spot size |
GB2117208A (en) * | 1982-03-13 | 1983-10-05 | Dainippon Screen Mfg | Reproducing composite picture from scanned original picture and scanned character document |
US4680645A (en) * | 1986-08-25 | 1987-07-14 | Hewlett-Packard Company | Method for rendering gray scale images with variable dot sizes |
Also Published As
Publication number | Publication date |
---|---|
JP2941355B2 (en) | 1999-08-25 |
EP0457229A2 (en) | 1991-11-21 |
US5151973A (en) | 1992-09-29 |
JPH0423565A (en) | 1992-01-27 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT NL |
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PUAL | Search report despatched |
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AK | Designated contracting states |
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17P | Request for examination filed |
Effective date: 19930310 |
|
17Q | First examination report despatched |
Effective date: 19950628 |
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APAB | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPE |
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APAB | Appeal dossier modified |
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APAD | Appeal reference recorded |
Free format text: ORIGINAL CODE: EPIDOS REFNE |
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APAB | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 20000509 |
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APAF | Appeal reference modified |
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